Home / 156,372,553.89-215,794,151.01-86,757,768.63

Finding the Fourth Proportional to 156,372,553.89, 215,794,151.01 and 86,757,768.63

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Solution

The fourth proportional to 156,372,553.89, 215,794,151.01 and 86,757,768.63 is: 119,725,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,372,553.89 : 215,794,151.01 = 86,757,768.63 : x
  2. Step 2: Convert to fraction form
    156,372,553.89/215,794,151.01 = 86,757,768.63/x
  3. Step 3: Cross multiply
    156,372,553.89x = 215,794,151.01 × 86,757,768.63
  4. Step 4: Simplify right side
    156,372,553.89x = 18,721,819,025,032,860
  5. Step 5: Solve for x
    x = 18,721,819,025,032,860/156,372,553.89
  6. Step 6: Final answer
    x = 119,725,735.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.